The part(s) or condition(s) listed below for the symptom Microwave display not working are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
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What Causes a Microwave to Spark and Arc?A malfunctioning display could be caused by a defective control module. Try pressing each of the buttons on the control panel. If none of the buttons are responding correctly, it is likely the control module is defective and will need to be replaced.
If the microwave does not have a separate display board, then the display not working is likely caused by a defective touchpad and control panel.
If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
If the display isn’t working at all, either the main control board or the display board could be at fault. If the display goes out partially, the display board is more commonly at fault.
Confirm the microwave is plugged in and there is power at the wall receptacle. You can plug another small appliance into the receptacle to confirm there is power. If there is no power, confirm the circuit breaker has not tripped.
A microwave display not working may be due to a power outage or power surge. Full operation can sometimes be restored through a power reset by either unplugging the unit's power cord for a few seconds and then plugging it back in or switching off the circuit breaker for the microwave then switching it back on.
If the microwave does not have a separate display board, then the display not working is likely caused by a defective control panel.
